CVE-2026-43688

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-14 · updated 2026-10-26
Weakness: CWE-1021

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27. Processing a maliciously crafted file may lead to unexpected app termination.

Affected products

Apple iPadOS: before 27.0 — fixed in 27.0
Apple Iphone Os: before 27.0 — fixed in 27.0
Apple macOS: before 27.0 — fixed in 27.0
Apple iOS and iPadOS: before 27 — fixed in 27
Apple macOS: before 27 — fixed in 27

How to fix

Upgrade to a fixed version: Apple iPadOS 27.0; Apple Iphone Os 27.0; Apple macOS 27.0; Apple iOS and iPadOS 27; Apple macOS 27. Check the vendor advisory for mitigations.

References

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